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//! [0]
#include <QtGui>

#include "mainwindow.h"
//! [0]

//! [1]
MainWindow::MainWindow()
{
	textEdit = new QTextEdit;
	setCentralWidget(textEdit);

	createActions();
	createMenus();
	createToolBars();
	createStatusBar();
	createDockWindows();

	setWindowTitle(tr("Dock Widgets"));

	newLetter();
	setUnifiedTitleAndToolBarOnMac(true);
}
//! [1]

//! [2]
void MainWindow::newLetter()
{
	textEdit->clear();

	QTextCursor cursor(textEdit->textCursor());
	cursor.movePosition(QTextCursor::Start);
	QTextFrame *topFrame = cursor.currentFrame();
	QTextFrameFormat topFrameFormat = topFrame->frameFormat();
	topFrameFormat.setPadding(16);
	topFrame->setFrameFormat(topFrameFormat);

	QTextCharFormat textFormat;
	QTextCharFormat boldFormat;
	boldFormat.setFontWeight(QFont::Bold);
	QTextCharFormat italicFormat;
	italicFormat.setFontItalic(true);

	QTextTableFormat tableFormat;
	tableFormat.setBorder(1);
	tableFormat.setCellPadding(16);
	tableFormat.setAlignment(Qt::AlignRight);
	cursor.insertTable(1, 1, tableFormat);
	cursor.insertText("The Firm", boldFormat);
	cursor.insertBlock();
	cursor.insertText("321 City Street", textFormat);
	cursor.insertBlock();
	cursor.insertText("Industry Park");
	cursor.insertBlock();
	cursor.insertText("Some Country");
	cursor.setPosition(topFrame->lastPosition());
	cursor.insertText(QDate::currentDate().toString("d MMMM yyyy"), textFormat);
	cursor.insertBlock();
	cursor.insertBlock();
	cursor.insertText("Dear ", textFormat);
	cursor.insertText("NAME", italicFormat);
	cursor.insertText(",", textFormat);
	for (int i = 0; i < 3; ++i)
		cursor.insertBlock();
	cursor.insertText(tr("Yours sincerely,"), textFormat);
	for (int i = 0; i < 3; ++i)
		cursor.insertBlock();
	cursor.insertText("The Boss", textFormat);
	cursor.insertBlock();
	cursor.insertText("ADDRESS", italicFormat);
}
//! [2]

//! [3]
void MainWindow::print()
{
#ifndef QT_NO_PRINTDIALOG
	QTextDocument *document = textEdit->document();
	QPrinter printer;

	QPrintDialog *dlg = new QPrintDialog(&printer, this);
	if (dlg->exec() != QDialog::Accepted)
		return;

	document->print(&printer);

	statusBar()->showMessage(tr("Ready"), 2000);
#endif
}
//! [3]

//! [4]
void MainWindow::save()
{
	QString fileName = QFileDialog::getSaveFileName(this,
	                   tr("Choose a file name"), ".",
	                   tr("HTML (*.html *.htm)"));
	if (fileName.isEmpty())
		return;
	QFile file(fileName);
	if (!file.open(QFile::WriteOnly | QFile::Text)) {
		QMessageBox::warning(this, tr("Dock Widgets"),
		                     tr("Cannot write file %1:\n%2.")
		                     .arg(fileName)
		                     .arg(file.errorString()));
		return;
	}

	QTextStream out(&file);
	QApplication::setOverrideCursor(Qt::WaitCursor);
	out << textEdit->toHtml();
	QApplication::restoreOverrideCursor();

	statusBar()->showMessage(tr("Saved '%1'").arg(fileName), 2000);
}
//! [4]

//! [5]
void MainWindow::undo()
{
	QTextDocument *document = textEdit->document();
	document->undo();
}
//! [5]

//! [6]
void MainWindow::insertCustomer(const QString &customer)
{
	if (customer.isEmpty())
		return;
	QStringList customerList = customer.split(", ");
	QTextDocument *document = textEdit->document();
	QTextCursor cursor = document->find("NAME");
	if (!cursor.isNull()) {
		cursor.beginEditBlock();
		cursor.insertText(customerList.at(0));
		QTextCursor oldcursor = cursor;
		cursor = document->find("ADDRESS");
		if (!cursor.isNull()) {
			for (int i = 1; i < customerList.size(); ++i) {
				cursor.insertBlock();
				cursor.insertText(customerList.at(i));
			}
			cursor.endEditBlock();
		}
		else
			oldcursor.endEditBlock();
	}
}
//! [6]

//! [7]
void MainWindow::addParagraph(const QString &paragraph)
{
	if (paragraph.isEmpty())
		return;
	QTextDocument *document = textEdit->document();
	QTextCursor cursor = document->find(tr("Yours sincerely,"));
	if (cursor.isNull())
		return;
	cursor.beginEditBlock();
	cursor.movePosition(QTextCursor::PreviousBlock, QTextCursor::MoveAnchor, 2);
	cursor.insertBlock();
	cursor.insertText(paragraph);
	cursor.insertBlock();
	cursor.endEditBlock();

}
//! [7]

void MainWindow::about()
{
	QMessageBox::about(this, tr("About Dock Widgets"),
	                   tr("The <b>Dock Widgets</b> example demonstrates how to "
	                      "use Qt's dock widgets. You can enter your own text, "
	                      "click a customer to add a customer name and "
	                      "address, and click standard paragraphs to add them."));
}

void MainWindow::createActions()
{
	newLetterAct = new QAction(QIcon(":/images/new.png"), tr("&New Letter"),
	                           this);
	newLetterAct->setShortcuts(QKeySequence::New);
	newLetterAct->setStatusTip(tr("Create a new form letter"));
	connect(newLetterAct, SIGNAL(triggered()), this, SLOT(newLetter()));

	saveAct = new QAction(QIcon(":/images/save.png"), tr("&Save..."), this);
	saveAct->setShortcuts(QKeySequence::Save);
	saveAct->setStatusTip(tr("Save the current form letter"));
	connect(saveAct, SIGNAL(triggered()), this, SLOT(save()));

	printAct = new QAction(QIcon(":/images/print.png"), tr("&Print..."), this);
	printAct->setShortcuts(QKeySequence::Print);
	printAct->setStatusTip(tr("Print the current form letter"));
	connect(printAct, SIGNAL(triggered()), this, SLOT(print()));

	undoAct = new QAction(QIcon(":/images/undo.png"), tr("&Undo"), this);
	undoAct->setShortcuts(QKeySequence::Undo);
	undoAct->setStatusTip(tr("Undo the last editing action"));
	connect(undoAct, SIGNAL(triggered()), this, SLOT(undo()));

	quitAct = new QAction(tr("&Quit"), this);
	quitAct->setShortcuts(QKeySequence::Quit);
	quitAct->setStatusTip(tr("Quit the application"));
	connect(quitAct, SIGNAL(triggered()), this, SLOT(close()));

	aboutAct = new QAction(tr("&About"), this);
	aboutAct->setStatusTip(tr("Show the application's About box"));
	connect(aboutAct, SIGNAL(triggered()), this, SLOT(about()));

	aboutQtAct = new QAction(tr("About &Qt"), this);
	aboutQtAct->setStatusTip(tr("Show the Qt library's About box"));
	connect(aboutQtAct, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
}

void MainWindow::createMenus()
{
	fileMenu = menuBar()->addMenu(tr("&File"));
	fileMenu->addAction(newLetterAct);
	fileMenu->addAction(saveAct);
	fileMenu->addAction(printAct);
	fileMenu->addSeparator();
	fileMenu->addAction(quitAct);

	editMenu = menuBar()->addMenu(tr("&Edit"));
	editMenu->addAction(undoAct);

	viewMenu = menuBar()->addMenu(tr("&View"));

	menuBar()->addSeparator();

	helpMenu = menuBar()->addMenu(tr("&Help"));
	helpMenu->addAction(aboutAct);
	helpMenu->addAction(aboutQtAct);
}

void MainWindow::createToolBars()
{
	fileToolBar = addToolBar(tr("File"));
	fileToolBar->addAction(newLetterAct);
	fileToolBar->addAction(saveAct);
	fileToolBar->addAction(printAct);

	editToolBar = addToolBar(tr("Edit"));
	editToolBar->addAction(undoAct);
}

//! [8]
void MainWindow::createStatusBar()
{
	statusBar()->showMessage(tr("Ready"));
}
//! [8]

//! [9]
void MainWindow::createDockWindows()
{
	QDockWidget *dock = new QDockWidget(tr("Customers"), this);
	dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
	customerList = new QListWidget(dock);
	customerList->addItems(QStringList()
	                       << "John Doe, Harmony Enterprises, 12 Lakeside, Ambleton"
	                       << "Jane Doe, Memorabilia, 23 Watersedge, Beaton"
	                       << "Tammy Shea, Tiblanka, 38 Sea Views, Carlton"
	                       << "Tim Sheen, Caraba Gifts, 48 Ocean Way, Deal"
	                       << "Sol Harvey, Chicos Coffee, 53 New Springs, Eccleston"
	                       << "Sally Hobart, Tiroli Tea, 67 Long River, Fedula");
	dock->setWidget(customerList);
	addDockWidget(Qt::RightDockWidgetArea, dock);
	viewMenu->addAction(dock->toggleViewAction());

	dock = new QDockWidget(tr("Paragraphs"), this);
	paragraphsList = new QListWidget(dock);
	paragraphsList->addItems(QStringList()
	                         << "Thank you for your payment which we have received today."
	                         << "Your order has been dispatched and should be with you "
	                         "within 28 days."
	                         << "We have dispatched those items that were in stock. The "
	                         "rest of your order will be dispatched once all the "
	                         "remaining items have arrived at our warehouse. No "
	                         "additional shipping charges will be made."
	                         << "You made a small overpayment (less than $5) which we "
	                         "will keep on account for you, or return at your request."
	                         << "You made a small underpayment (less than $1), but we have "
	                         "sent your order anyway. We'll add this underpayment to "
	                         "your next bill."
	                         << "Unfortunately you did not send enough money. Please remit "
	                         "an additional $. Your order will be dispatched as soon as "
	                         "the complete amount has been received."
	                         << "You made an overpayment (more than $5). Do you wish to "
	                         "buy more items, or should we return the excess to you?");
	dock->setWidget(paragraphsList);
	addDockWidget(Qt::RightDockWidgetArea, dock);
	viewMenu->addAction(dock->toggleViewAction());

	connect(customerList, SIGNAL(currentTextChanged(QString)),
	        this, SLOT(insertCustomer(QString)));
	connect(paragraphsList, SIGNAL(currentTextChanged(QString)),
	        this, SLOT(addParagraph(QString)));
}
//! [9]
